Don't mix "return status" of a program and "return value" of a function. In C you can perhaps confuse them, because main() return()s the program's exit code.
That's different in Perl: return() returns a value from a subroutine. exit() returns a value(better "status" or "exit code") from a program.
$? contains the last "exit code" from a child of the current program. $? is set after qx//,system, (...). It has nothing to do with modules, for the loading of modules doesn't invoke a new process, it happens in the perl process your program runs in.
As lready mentioned, `perldoc perlsub` should be read, also perlmod, as well as `perldoc -f return` and `perldoc -f exit`.
--
http://
fruiture.de
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.